Patents by Inventor Hyun Chang Lee

Hyun Chang Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240155117
    Abstract: An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Ho LEE, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Ha Hyun LEE, Dong San JUN, Hui Yong KIM
  • Publication number: 20240155110
    Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Won KANG, Sung Chang LIM, Hyun Suk KO, Ha Hyun LEE, Jin Ho LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI
  • Patent number: 11972726
    Abstract: A light emitting display device includes a light emitting diode including a first electrode and a second electrode to which a driving voltage is applied, a driving transistor, a second transistor receiving a data voltage and connected to a D node, a storage capacitor connected to the driving transistor and an N node, a hold capacitor connected to the D node and the N node, a third transistor connected to the D node and the driving transistor, a fourth transistor receiving a reference voltage and connected to the driving transistor, a fifth transistor connected to the driving transistor and the N node, a sixth transistor receiving a driving low voltage and connected to the driving transistor, a seventh transistor receiving an initialization voltage and connected the driving transistor, and an eighth transistor connected to the driving transistor and the first electrode of the light emitting diode.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: April 30, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung Chang Yu, Hyun Joon Kim, Hae Min Kim, Myunghoon Park, Dong-Hoon Lee
  • Publication number: 20240137503
    Abstract: An image encoding/decoding method is disclosed. A method of decoding an image, the method comprising, deriving an intra prediction mode for a current block, decoding at least one original sample that is present in a rightmost column and a bottommost row (a bottom row) of the current block, constructing a reference sample by using the at least one decoded original sample and performing intra prediction on the current block by using the constructed reference sample.
    Type: Application
    Filed: January 3, 2024
    Publication date: April 25, 2024
    Inventors: Hyun Suk KO, Jin Ho LEE, Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Dong San JUN, Hui Yong KIM
  • Publication number: 20240121385
    Abstract: The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 11, 2024
    Inventors: Hyun Suk KO, Jin Ho LEE, Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI
  • Patent number: 11943475
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: March 26, 2024
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Hyun Suk Ko, Sung Chang Lim, Jung Won Kang, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Hui Yong Kim
  • Publication number: 20240098311
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image encoding method according to the present invention may comprise generating a transform block by performing at least one of transform and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficient included in the coefficient group; and encoding the at least one coefficient.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Sung Chang LIM, Jung Won KANG, Hyun Suk KO, Jin Ho LEE, Dong San JUN, Ha Hyun LEE, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI, Yung Lyul LEE, Jun Woo CHOI
  • Patent number: 11936853
    Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: March 19, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Won Kang, Sung Chang Lim, Hyun Suk Ko, Ha Hyun Lee, Jin Ho Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Publication number: 20240080454
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 7, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Sung Chang LIM, Hyun Suk KO, Jung Won KANG, Jin Ho Lee, Ha Hyun LEE, Dong San Jun, Hui Yong KIM
  • Publication number: 20240080455
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 7, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Sung Chang LIM, Hyun Suk KO, Jung Won KANG, Jin Ho Lee, Ha Hyun LEE, Dong San Jun, Hui Yong KIM
  • Patent number: 11924412
    Abstract: An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: March 5, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Ho Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Ha Hyun Lee, Dong San Jun, Hui Yong Kim
  • Publication number: 20240073413
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction using a plurality of reference sample lines are provided. An image decoding method may comprise configuring a plurality of reference sample lines, reconstructing an intra prediction mode of a current block, and performing intra prediction for the current block based on the intra prediction mode and the plurality of reference sample lines.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 29, 2024
    Inventors: Jin Ho LEE, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Ha Hyun LEE, Dong San JUN, Hui Yong KIM
  • Patent number: 11623477
    Abstract: The present disclosure relates to a method and manufacturing method for a tire tread composition having absorption properties with high electric conductivity and excellent wear resistance. Specifically, the present disclosure relates to the fabrication of a tire composition to be used as a non-pneumatic tire, the tire composition can be used as a mobile electrode with a water supply means that can identify the location of defects in the buried conductor using the tire electrode manufacturing with improved conductivity and contact resistance with the ground even though the tire compound has wear resistance by lowering the water swelling rate compared to the previous technology.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: April 11, 2023
    Inventor: Hyun Chang Lee
  • Patent number: 11435407
    Abstract: The device for detecting a leak may include: an earth voltage measuring unit measuring earth voltage; an ADC unit sampling the measured earth voltage and converting the sampled earth voltage into a digital value; an effective value calculating unit calculating an effective value of the earth voltage converted into the digital value; a Fourier transforming unit performing Fourier transform of the measured earth voltage to calculate voltage for each harmonic component; a content rate calculating unit calculating a voltage content rate of the fundamental frequency to voltage; a harmonic distortion rate calculating unit calculating a total harmonic distortion and a harmonic distortion factor based on the voltage for each harmonic component; a zero-crossing estimating unit estimating a zero-crossing count; and a suspicious earth leaking area determining unit determining that the earth voltage is generated by the leak of the AC commercial power.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: September 6, 2022
    Inventor: Hyun Chang Lee
  • Patent number: 11435379
    Abstract: In an exemplary embodiment of the present disclosure for solving the problem, disclosed is a stability-improved high voltage power line path exploration apparatus.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: September 6, 2022
    Inventor: Hyun Chang Lee
  • Publication number: 20220145074
    Abstract: The present disclosure relates to a method and manufacturing method for a tire tread composition having absorption properties with high electric conductivity and excellent wear resistance. Specifically, the present disclosure relates to the fabrication of a tire composition to be used as a non-pneumatic tire, the tire composition can be used as a mobile electrode with a water supply means that can identify the location of defects in the buried conductor using the tire electrode manufacturing with improved conductivity and contact resistance with the ground even though the tire compound has wear resistance by lowering the water swelling rate compared to the previous technology.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Inventor: Hyun Chang LEE
  • Publication number: 20220075006
    Abstract: A mobile earth leaking survey apparatus is provided. The apparatus includes a magnetic field sensor. The apparatus includes a plurality of electrodes configured to be capacitively coupled to ground. The apparatus includes a signal timing unit for finding and setting a time T by analyzing signals input from the magnetic field sensor, wherein the time T matches a signal start time of a survey current transmitter. The apparatus includes a signal detection unit for identifying a polarity and a magnitude of a signal from the magnetic field sensor for a predetermined discrete period of time at a predetermined interval time from the time T. The apparatus includes a potential measuring unit for measuring an earth potential value input from the plurality of electrodes.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Inventor: Hyun Chang LEE
  • Patent number: 10996285
    Abstract: A method for detecting an electric leakage point without interrupting a power supply is provided. The method includes transmitting a unipolar direct current (DC) survey voltage signal to an electric wire of the power supply. The method includes transmitting a chain of electromagnetic wave signals generated around the electric wire to synchronize a reference time to measure an earth potential of the unipolar DC voltage signal and capture an electromagnetic tracking signal. The method includes tracing a buried route of the electric wire by analyzing the electromagnetic tracking signal according to the reference time. The method includes measuring the earth potential of the unipolar DC voltage signal on the ground according to the reference time. The method includes locating the electric leakage point by identifying a polarity of the unipolar DC voltage signal.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 4, 2021
    Inventor: Hyun Chang Lee
  • Publication number: 20210018540
    Abstract: In an exemplary embodiment of the present disclosure for solving the problem, disclosed is a stability-improved high voltage power line path exploration apparatus.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 21, 2021
    Inventor: Hyun Chang LEE
  • Publication number: 20200150189
    Abstract: Disclosed is a device for detecting a leak.
    Type: Application
    Filed: April 6, 2018
    Publication date: May 14, 2020
    Inventor: Hyun Chang LEE